CYP15G0101DXB Cypress Semiconductor Corporation., CYP15G0101DXB Datasheet - Page 37

• Manufacturer Part Number: CYP15G0101DXB
• Description: Single-channel Hotlink Ii Transceiver
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-02031 Rev. *J
Table 21. Valid Special Character Codes and Sequences (TXCTx = Special Character Code or RXSTx[2:0] = 001)
K28.0
K28.1
K28.2
K28.3
K28.4
K28.5
K28.6
K28.7
K23.7
K27.7
K29.7
K30.7
EOFxx
Exception
−K28.5
+K28.5
Exception
Notes:
S.C. Code Name
46. All codes not shown are reserved.
47. Notation for Special Character Code Name is consistent with Fibre Channel and ESCON naming conventions. Special Character Code Name is intended to
48. Both the Cypress and alternate encodings may be used for data transmission to generate specific Special Character Codes. The decoding process for received
49. These characters are used for control of ESCON interfaces. They can be sent as embedded commands or other markers when not operating using ESCON protocols.
50. The K28.5 character is used for framing operations by the receiver. It is also the pad or fill character transmitted to maintain the serial link when no user data is available.
51. Care must be taken when using this Special Character code. When a K28.7(C7.0) or SVS(C0.7) is followed by a D11.x or D20.x,an alias K28.5 sync character
52. C2.1
53. C0.7
54. C1.7
55. C2.7
56. C4.7
57. Supported only for data transmission. The receive status for these conditions will be reported by specific combinations of receive status bits.
End of Frame Sequence
Code Rule Violation and SVS Tx Pattern
Running Disparity Violation Pattern
describe binary information present on I/O pins. Common usage for the name can either be in the form used for describing Data patterns (i.e., C0.0 through
C31.7), or in hex notation (i.e., Cnn where nn
characters generates Cypress codes or Alternate codes as selected by the DECMODE configuration input.
is created. These sequences can cause erroneous framing and should be avoided while RFEN
bit to 1 or 0. If Current RD at the start of the following character is plus (+) the LSB is set to 0, and if Current RD is minus (−) the LSB becomes 1. This modification
allows construction of X3.230 “EOF” frame delimiters wherein the second data byte is determined by the Current RD.
For example, to send “EOFdt” the controller could issue the sequence C2.1−D21.4− D21.4−D21.4, and the HOTLink Transmitter will send either
K28.5−D21.4−D21.4−D21.4 or K28.5−D21.5− D21.4−D21.4 based on Current RD. Likewise to send “EOFdti” the controller could issue the sequence
C2.1−D10.4−D21.4−D21.4, and the HOTLink Transmitter will send either K28.5−D10.4−D21.4− D21.4 or K28.5−D10.5−D21.4− D21.4 based on Current RD.
The receiver will never output this Special Character, since K28.5 is decoded as C5.0, C1.7, or C2.7, and the subsequent bytes are decoded as data.
Special Character if the Transmission Character being decoded is not found in the tables.
running disparity. The receiver will output C1.7 if −K28.5 is received with RD+, otherwise K28.5 is decoded as C5.0 or C2.7.
running disparity. The receiver will output C2.7 if +K28.5 is received with RD−, otherwise K28.5 is decoded as C5.0 or C1.7.
Character being decoded is found in the tables, but Running Disparity does not match. This might indicate that an error occurred in a prior byte.
[49]
[49]
[49]
[49, 50]
[49]
[49, 51]
[52]
[54]
[55]
=
=
=
=
=
[51, 53]
[56]
Transmit either −K28.5+ or +K28.5− as determined by Current RD and modify the Transmission Character that follows, by setting its least significant
Transmit a deliberate code rule violation. The code chosen for this function follows the normal Running Disparity rules. The receiver will only output this
Transmit Negative K28.5 (−K28.5+) disregarding Current RD. The receiver will only output this Special Character if K28.5 is received with the wrong
Transmit Positive K28.5 (+K28.5−) disregarding Current RD. The receiver will only output this Special Character if K28.5 is received with the wrong
Transmit a deliberate code rule violation to indicate a Running Disparity violation. The receiver will only output this Special Character if the Transmission
C0.0
C1.0
C2.0
C3.0
C4.0
C5.0
C6.0
C7.0
C8.0
C9.0
C10.0
C11.0
C2.1
C0.7
C1.7
C2.7
C4.7
S.C. Byte
Name
(C00)
(C01)
(C02)
(C03)
(C04)
(C05)
(C06)
(C07)
(C08)
(C09)
(C0A)
(C0B)
(C22)
(CE0)
(CE1)
(CE2)
(CE4)
[48]
Cypress
HGF EDCBA
000 00000
000 00001
000 00010
000 00100
000 00101
000 01000
000 01001
000 01010
001 00010
000 00011
000 00110
000 00111
000 01011
111 00000
111 00001
111 00010
111 00100
=
Bits
the specified value between 00 and FF).
S.C. Byte Name
C28.0
C28.1
C28.2
C28.3
C28.4
C28.5
C28.6
C28.7
C23.7
C27.7
C29.7
C30.7
C2.1
C0.7
C1.7
C2.7
C4.7
S.C. Byte
Name
(C1C)
(C3C)
(C5C)
(C7C)
(C9C)
(CBC)
(CDC)
(CFC)
(CF7)
(CFB)
(CFD)
(CFE)
(C22)
(CE0)
(CE1)
(CE2)
(CE4)
[48]
Alternate
HGF EDCBA
111 00000
111 00001
111 00010
111 00100
001 00010
000 11100
001 11100
010 11100
011 11100
100 11100
101 11100
110 11100
111 11100
111 10111
111 11011
111 11101
111 11110
Bits
=
[57]
[57]
[57]
[57]
HIGH.
−K28.5,Dn.xxx0
Current RD−
110000 0101
001111 0100
001111 1001
001111 0101
001111 0010
001111 1010
001111 1000
111010 1000
110110 1000
101110 1000
011110 1000
100111 1000
001111 1010
110111 0101
abcdei fghj
001111 0011
001111 0110
CYW15G0101DXB
CYV15G0101DXB
CYP15G0101DXB
+K28.5,Dn.xxx1
Current RD+
001000 1010
110000 1011
110000 0110
110000 1010
110000 1100
110000 1101
110000 0101
110000 1001
000101 0111
001001 0111
010001 0111
100001 0111
110000 0101
abcdei fghj
110000 0111
011000 0111
001111 1010
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